Sheet forming processes
Constitutive modeling of advanced thermoset composites with application to sheet forming processes
... The major accomplishments of this research include: an experimental investigation of the me- chanical response of long fiber thermoset composites for a range of tem[r] ...
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Creep age forming of Al-Cu-Li alloy: Application to thick sheet forming of double curvature aircraft panel
... 1 Introduction In recent years, lightening aeronautical structures is one of the main axes of improvement. An interesting perspective is to add lithium to conventional aluminum alloys, which improves their mechanical ...
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Finite element prediction of sheet forming defects using elastic-plastic, damage and localization models
... new sheet forming processes. The prediction of forming defects like strain localization and springback are some of the current challenges in this research ...
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Simplified numerical approach for incremental sheet metal forming process
... Conventional sheet metal forming processes such as stamping and hydro-forming are realized with ...conventional sheet forming processes with dies become less competitive ...
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Comparison between incremental deformation theory and flow rule to simulate sheet-metal forming processes
... In the incremental deformation theory, the loading is considered to be proportional only during one time increment. Chung and Richmond (1993) present this theory in which the total strain sub- increment is proportional ...
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Investigation of advanced strain-path dependent material models for sheet metal forming simulations
... Nevertheless, the currently growing interest for the accurate prediction of springback mainly concerns sheet metals with increased light-weighting potential for the automotive industry, e.g. high strength steels. ...
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Modelling of metal forming processes and multi-physic coupling
... [4] G. Surdon, and J.- L. Chenot, Finite element calculations of three-dimensional hot forging, International Conference on Numerical Methods in Industrial Forming Processes Numiform'86, ed. by K. ...
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Numerical investigation and experimental validation of a plasticity model for sheet steel forming
... for sheet metal parts in the automotive industry to meet these ...in forming these new materials and the short development times in the automotive industry, the numerical simulation has become a common tool ...
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Self-adapting time integration management in crash-worthiness and sheet metal forming computations
... With the developed algorithm, the rst time step is rejected until the integration error is lower than the requested accuracy (and not until the step converges as in opti method).. There[r] ...
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Effect of Ductile Damage Evolution in Sheet Metal Forming: Experimental and Numerical Investigations
... (a) (b) Fig. 13: Numerical results of Erichsen test (a) Evolution of volume fraction, (b) von Mises stress. 5 Conclusions This paper presents an experimental and a numerical investigation of porous metal plasticity. ...
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Advances in palladium-catalyzed carbon-nitrogen bond forming processes
... Since aryl halides were inert to coupling with amines using soluble organic amine bases (e.g., DBU), aryl nonaflates were initially used.. Aryl nonaflates have been demonstrated to be [r] ...
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ALE Methods for Determining Stationary Solutions Metal Forming Processes
... 5 APPLICATION TO A DRAWBEAD SIMULATION Another interesting simulation has been considered to compare our update algorithms. In this case, we try to simulate a drawbead test presented by Nine [6], which consist in ...
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Magnetic pulse forming processes : Computational modelling and experimental validation
... electromagnetic forming or induction heating with moving coils, in which electromagnetism is coupled with thermo-mechanics, it is necessary to devise a methodology that enables to follow the movement and/or ...
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Modelling Nano-Composites: From Rheology to Forming Processes Simulation
... Material Forming, Simulation 1 INTRODUCTION Carbon nanotubes (CNTs) are cylinders of rolled graphite sheets possessing high mechanical strength, low density, and special electronic properties ...
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Quadratic solid‒shell elements for nonlinear structural analysis and sheet metal forming simulation
... as sheet metal forming processes involving large strains, anisotropic plasticity, and contact (see Abed-Meraim and Combescure [12], Salahouelhadj et ...as sheet metal forming ...
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Optimizing Composites Forming Processes by Applying the Proper Generalized Decomposition
... REFERENCES 1. F. Chinesta, A. Ammar, and E. Cueto, Archives of Computational Methods in Engineering (In Press). 2. F. Chinesta, A. Ammar, and E. Cueto, On the use of model reduction in material and processes ...
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Multiscale finite element simulation of forming processes based on crystal plasticity
... – sheet metal forming ...of sheet metal forming processes, the commercial finite element software packages are among the most commonly ...
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Multiscale finite element simulation of forming processes based on crystal plasticity
... Introduction Although commonly used for the simulation of sheet metal forming processes, the traditional commercial finite element (FE) codes have several limitations. These restrictions are mainly ...
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Singularity functions for fractional processes : application to the fractional Brownian sheet
... In the first part of the paper the almost sure convergence of the generalized quadratic variations is obtained under general assumption on the correlation of the Gaussian process when the mesh is 1/n. When the limit is ...
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Single point incremental sheet forming investigated by in-process 3D digital image correlation
... the sheet metal part during the forming and with a multi-camera system to measure the shape variation of the sheet metal part and the 3D displacement /strain field of its surface by 3D-Digital Image ...
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